Don't know if black dog is bsd or good ? Why's she reacting like that ?

My theory is she could be the mother of Bobae smh and she had to abandon him to keep him safe. Her dialogue kinda shows she symphatize with abandoned kids and pity tho who were abandoned, also seems grateful Rings protected Bobae from the blast

Yeah , it could be that way too but how come she didn't meet bobae father or could she be just kind with kids or something.

Mention of spoilers:
-
-
-
-
-
-
-
-
Good to the ppl she cares for, bad to everyone else. Or at least bad to mc. She don’t give af about mc. Her only nice moment is cause MC protected her kid. Even after she saw mc care for her kid and protect him more than once, she beats mc up and delivers him to the pedo as per her mission.